Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCV+RT1brWB+C0JY+jE8PpH/NI3+5WpUzsl9szZv3SRyVK20ylJWvP5GoGC… (1,748 chars)"
  }
}